Dominion Energy announced execution of a definitive agreement to sell Questar Pipelines to Southwest Gas Holdings Inc., in a transaction valued at $1.975 billion, including the assumption of $430 million of existing indebtedness. Questar Pipelines consists of FERC-regulated, long-term contracted, transportation and underground storage assets in Utah, Wyoming and Colorado, together with related services and processing entities. The transaction is expected to close in the fourth quarter of 2021, subject to regulatory approvals.

Robert M. Blue, Dominion Energy chair, president and chief executive officer, said:

"We are pleased with the result of our sale process for these high-quality assets. This transaction represents another significant step in our evolution as a company, allowing us to focus even more on fulfilling the energy needs of our utility customers and continuing growth of our clean-energy portfolio, including development of the largest offshore wind farm in North America. We appreciate the focus and professionalism of the Questar Pipelines employees, who have maintained safe and reliable operations. We look forward to closure by year's end."

Today's announcement does not change Dominion Energy's existing financial guidance. Questar Pipelines will continue to be accounted for as discontinued operations. Proceeds from the sale will be used by Dominion Energy to reduce parent-level debt, including retiring the 364-day term loan that was entered into in July, which Dominion Energy previously used to repay the approximately $1.3 billion transaction deposit made by Berkshire Hathaway Energy. Proceeds from the sale of Questar Pipelines will also be used to support Dominion Energy's robust regulated capital plan, as part of the largest regulated decarbonization opportunity in the country.

McGuireWoods LLP served as legal counsel to Dominion Energy. Barclays acted as the company's financial advisor.

About Dominion Energy Questar Pipeline, LLC

Dominion Energy Questar Pipeline, LLC is an interstate natural gas pipeline company that provides transportation and underground storage services in Utah, Wyoming and Colorado. Dominion Energy Questar Pipeline, LLC owns and operates the Clay Basin storage facility located on the Wyoming-Utah border. Clay Basin is the largest underground storage reservoir in the Rocky Mountain Region. Through wholly-owned subsidiaries, Dominion Energy Questar Pipeline, LLC owns and operates the Dominion Energy Overthrust Pipeline, LLC in southwestern Wyoming. Dominion Energy Questar Pipeline also operates and owns 50% of the White River Hub providing transportation and hub services through interconnections with six interstate pipeline systems and a major processing plant near Meeker, Colorado.

About Southwest Gas Holdings, Inc.

Southwest Gas Holdings, Inc. (NYSE: SWX), through its subsidiaries, engages in the business of purchasing, distributing and transporting natural gas, and providing comprehensive utility infrastructure services across North America. Southwest Gas Corporation, a wholly owned subsidiary, safely and reliably delivers natural gas to over two million customers in Arizona, California and Nevada. Centuri Group, Inc., a wholly owned subsidiary, is a comprehensive utility infrastructure services enterprise dedicated to delivering a diverse array of solutions to North America's gas and electric providers.

About Dominion Energy

More than 7 million customers in 16 states energize their homes and businesses with electricity or natural gas from Dominion Energy (NYSE: D), headquartered in Richmond, Va. The company is committed to sustainable, reliable, affordable and safe energy and to achieving net zero carbon dioxide and methane emissions from its power generation and gas infrastructure operations by 2050.